<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>下载pdf</title>
<script src="js/pdf.js"></script>
<style type="text/css">
</style>
<script type="text/javascript">

</script>
</head>
<body>
<input type="button" value="下载"  id="downbtn" onclick="downloadPDF.action">

</body>
</html>